Iron is one of the largest elements in the earths crust as well as it is highly active metals.

铁是地壳中含量最多的元素之一，同时它也是氧化还原性很强的活泼金属。

youdao

Iron is one of the largest elements in the earths crust as well as it is highly active metals.

铁是地壳中含量最多的元素之一，同时它也是氧化还原性很强的活泼金属。

youdao